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No. 84,270; lPatented Nov. 24,1868.

NPETERS, PHOTO-LITHOGRAPHER. WASHINGTON, u C4 ses. NZM tm #met @Tatra Mwave- OSSIAN E. DODGE, OF ST. 'PAUL MINNESOTA.

Letters Patent No. 84,270, dated Noz-amber 24, 1868.

IMPROVEMENT IN The Schedule referred to in these Letters Patent and making part of the same.

To all 'whomI it may concern: Be it known that I, Ossmx E. DODGE, ef St. Paul, in the county of Ramsey, and State of Minnesota, have invented certainnew and useful Improvements in Head- Light for Public Halls&c.; and I do hereby declare that the following is a full and com-plete description of the same, reference being had to the accompanying drawings, making a part ofthis specification, in which- Figure 1 is a front iiew ofthe light. Figure. 2, a side view. Like letters of reference refer to like parts in the several views.

The nature of this invention relates to a head-light for publichalls, theatres, &c., ywhere the light may be vrequired to be reflected from one part of the house to another, or excluded from one place and concentrated in another, for scenic or dramatic effect;

In f1g.l, A represents a section of gas-pipe, in which is a series'of burners or nipples, B, more or less in number, as may be required. This pipe is arranged at right angles to the supply-pipe C, leading from the meter. Above and in the rear of this pipe is a rod, D, towhich is attached loosely' a double reflector, E, by means of the rings F, whereby it can be raised upward, or lowered from or over the burners, as aud for a pur` pose hereinafter shown.

The practical operation of this arrangement is as follow's, viz:

This head-light is hung up at au angle of about fortytive degrees from the front of the stage. In this relation to the stage the best effect is obtained.

The position of the reflector, in its relation to the burners, as shown in fig. 2, is such that the light will be reiected from-two plane surfaces, E and G, as indicated by the dot-ted lines a, which diffuse the light widely over the lhall or stage.

Now, should it be required to throw the light upon any one part of the room, or upon the stageonly, the retlector is lowered hymeans ofthe cord H, which, for convenience, may be carried to the ante-room, or to some other convenient place.

It will be obvious that on lowering the reflector, the rays of light may be thrown at any angle required, thereby concentrating them, by the double'reector,in a mostbrilliant manner upon any one place desired.

This adjustment of the reflector, by means of the cords, unseen by the audience, places the light for scenic and dramatic purposes immediatelyT under the command of the scene-manager, so that he can regulate the light without in any way attracting the attention of the people, or causing the least delay in the progress of the p erformance.

This augmentation of the light, by the double character of the reflector, saves largely in the expense of lighting the house; hence, this head-light is not only valuable for its convenience in changing the direction of the light, but also in view of the saving in the consumption of. gas.

Vha-t- I cla-im as my invention, and desire to secure by Letters Patent, is-

The double reeetor E, as arranged and operated by the cord H, in combination with the pipe A and burners, for the purpose specified.

OSSIAN E.- DODGE.

Witnesses:

J. J. EGAN, H. J. HORN. 

